Core structures for nuclear reactors

ABSTRACT

A GRAPHITE BLOCK FOR USE IN A NUCLEAR REACTOR, WHEREIN PASSAGES ARE FORMED IN THE BLOCK FOR THE PASSAGE OF COOLING FLUID, OR FOR CONTAINING NUCLEAR FUEL, OR FOR BOTH PURPOSES, AT LEAST SOME OF THE SIDES OF EACH PASSAGE BEING FLAT OR STRAIGHT TO DEFINE PASSAGES OF TRIANGULAR, RECTANGULAR OR POLYGONAL CROSS-SECTION. THE PASSAGES MAY BE FORMED BY USING MORTISE CHAIN CUTTING GEAR.

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Ofllce makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED FEBRUARY 2, 1971 T883,001 CORE STRUCTURES FOR NUCLEAR REACTORS Donald Stanley Pettinger, Radbroke Hall, Knutsford, England Filed Feb. 19, 1969, Ser. No. 800,680 Int. Cl. G21c 5/00 US. Cl. 176-84 5 Sheets Drawing. 4 Pages Specification A graphite block for use in a nuclear reactor, wherein passages are formed in the block for the passage of cooling fluid, or for containing nuclear fuel, or for both purposes, at least some of the sides of each passage being fiat or straight to define passages of triangular, rectangular or polygonal cross-section. The passages may be formed by using mortise chain cutting gear.

Feb. 2, 1971 Filed Feb. 19. 1969 D. S. PETTINGER I CORE STRUCTURES FOR NUCLEAR REACTORS 5 Sheets-Sheet 1 Feb. 2, 1971 D. s. PET'IQINGER 83,Q0l

CORE STRUCTURES FOR NUCLEAR REACTORS Filed Feb. 19. 1969 I 5 Sheets-Sheet 3 max/v70? 004/910 5/79/1467 Pam 55A 1:90AM,

Feb. 2, 1971 0. s. PETTINGER CORE STRUCTURES FOR NUCLEAR REACTORS Filed Feb. 19. 1969 5 Sheets-Sheet 5 Feb. 2, 1971 0. s. PETTINGER 1883,00!

CORE'STRUCTURES FOR NUCLEARREACTORS Filed Feb. 19. 1969 I 5 Sheets-Sheet 4 Feb. 2, 1971 Filed Feb. 19. 1969 CORE D. S. PETTING'ER STRUCTURES FOR NUCLEAR REACTORS 5 Sheets-Sheet 5 

